package com.interfacetest;

public class KeyBoard implements IUSB{
    @Override
    public void openDevice() {
        System.out.println("打开键盘……");
    }

    @Override
    public void closeDevice() {
        System.out.println("关闭键盘……");
    }

    public void use(){
        System.out.println("键盘打字操作……");
    }
}
